Valve



FIG. 1 is a top front perspective view of a valve showing our new design;

FIG. 2 is a back view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines shown in the figures are for the purpose of illustrating portions of the valve and form no part of the claimed design. 

CLAIM The ornamental design for a valve, as shown and described. 